摘要
USB接口具有即插即用、安装方便、高带宽、易扩展、传输速度快等优点,尽管USB2.0规范中最高传输速度已经达到了60MB/s,但是很多USB2.0设备在实际工作时的数据传输速度却与此相差甚远,设计了一个以FPGA为主控制器、以CY7C68013为接口芯片的数据采集系统;当接口芯片CY7C68013工作在同步的Slave FIFO模式下时,在数据的传输控制上设计了块传输同步控制信号,保证数据传输的正确性和稳定性,系统所能达到稳定的最高传输速度为31.8MB/s。
USB interface has the advantage of plug-and-play, easy to install, high-bandwidth, easy to expand and high-speed transmission. Despite the USB2.0 specification has reached the highest transmission speed of 60MB/s, but a lot of USB 2.0 devices actually worked in the data transmission quite different from it. The data acquisition system has been designed with FPGA as a central controller and CY7C68013 as a interface in this paper. When the interface chip CY7C68013 work at Synchronization slave FIFO mode, a block synchronization signal is designed to ensure the stability and highest transmission. The highest data transfers speed of the system is 31.8MB/s.
出处
《计算机测量与控制》
CSCD
北大核心
2009年第5期1003-1005,1012,共4页
Computer Measurement &Control
基金
黑龙江省自然科学基金项目(E2004-07)
